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Fair Value Measurements - Summary of Fair Value Liabilities Measured at Fair Value On Recurring Basis (Details) - USD ($)
Sep. 30, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Digital currencies $ 2 $ 199 $ 17,036  
Derivative Liabilities 4,341,334 23,231,938 3,794,153
Derivative liabilities for shortfall of shares 14,915,419  
Convertible notes at inclusive of derivative liabilities 3,283,034 1,781,156
Level 1 [Member]        
Digital currencies 2 199 17,036  
Derivative Liabilities  
Derivative liabilities for shortfall of shares    
Convertible notes at inclusive of derivative liabilities  
Fair Value, Inputs, Level 2 [Member]        
Digital currencies  
Derivative Liabilities  
Derivative liabilities for shortfall of shares    
Convertible notes at inclusive of derivative liabilities  
Fair Value, Inputs, Level 3 [Member]        
Digital currencies  
Derivative Liabilities 4,341,334 23,231,938 3,794,153  
Derivative liabilities for shortfall of shares 14,915,419    
Convertible notes at inclusive of derivative liabilities $ 3,283,034 $ 1,781,156